• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Research for clinical application of ultrasound facilitated drug delivery system

Research Project

Project/Area Number 21H03039
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 56010:Neurosurgery-related
Research InstitutionNagoya University

Principal Investigator

Saito Ryuta  名古屋大学, 医学系研究科, 教授 (10400243)

Co-Investigator(Kenkyū-buntansha) 大橋 雄二  東北大学, 未来科学技術共同研究センター, 特任准教授 (50396462)
金森 政之  東北大学, 医学系研究科, 准教授 (60420022)
冨永 悌二  東北大学, 大学病院, 教授 (00217548)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2023: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2022: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2021: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Keywords薬剤送達 / 中枢神経系 / 超音波 / 定位脳手術 / 脳内局所広範囲薬剤送達 / 脳腫瘍 / Drug Delivery System
Outline of Research at the Start

これまで脳実質内局所広範囲に高濃度薬剤送達を可能とする新規薬物送達法Convectionenhanced delivery(CED)を用いた中枢神経系疾患の新規治療法の開発を進め、2018年より小児脳幹部神経膠腫を対象とした化学療法剤局所投与の医師主導治験を開始した。さらに超音波併用薬剤投与技術を確立し、CEDを超える広範囲薬剤投与を可能とした。本技術は、脳内薬剤注入局所での超音波併用を可能とする点で独自の技術であり、複雑な組織構築へも均一な薬剤分布を可能とする可能性がある。特に現在、治療開発を進めている脳腫瘍モデルへの治療効果解析を進め、臨床応用に向けた基盤を構築し、臨床応用へ繋げたい。

Outline of Final Research Achievements

Verification of the effect of combined use of ultrasound: Experiments were conducted to confirm the effect of drug diffusion using ultrasound with a piezoelectric applied device. The permeation width of Evans blue dye in a brain-mimicking gel with and without the device (driven at the optimum frequency of PZT) was compared, and it was confirmed that the permeation of the dye increased when the device was used with ultrasound compared to when the device was not used.
Development of device for clinical application: As part of the development of equipment for clinical use, it was found that the length of the combined ultrasound device, including the device and grasping rod, could be a problem for precision guidance in stereotactic surgery devices, and improvement measures were necessary. A fixation jig was created, and the step of device development for clinical application was completed.

Academic Significance and Societal Importance of the Research Achievements

CEDによる薬剤局所投与は、欧米でもまだ承認された治療法とはなっていない。薬剤分布の制限がその理由とされる。脳表からの超音波で薬剤拡散を改善する試みは米国でもなされているものの、東北大学医工学研究科、東北大学金属材料研究所との共同で作成した我々の超音波併用薬剤投与システムは薬剤注入部位に超音波を併用する点で独自かつ創造的なものである。本研究で注入局所に超音波が併用できる利点をしっかり示し、臨床応用につなげることは、様々な分子生物学的進歩を中枢神経疾患に応用する、つまりin vitroをそのまま脳内in vivoに再現する可能性を与える創造的な研究であり、新たな治療可能性をもたらすものである。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (15 results)

All 2023 2022 2021

All Journal Article (6 results) (of which Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (9 results) (of which Int'l Joint Research: 4 results,  Invited: 5 results)

  • [Journal Article] Local Delivery of Nimustine Hydrochloride against Brain Tumors: Basic Characterization Study2023

    • Author(s)
      Shao Xiaodong、Saito Ryuta、Sato Aya、Okuno Saori、Saigusa Daisuke、Saito Ritsumi、Uruno Akira、Osada Yoshinari、Kanamori Masayuki、Tominaga Teiji
    • Journal Title

      The Tohoku Journal of Experimental Medicine

      Volume: 261 Issue: 3 Pages: 187-194

    • DOI

      10.1620/tjem.2023.J069

    • ISSN
      0040-8727, 1349-3329
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Imaging features of localized IDH wild-type histologically diffuse astrocytomas: a single-institution case series2023

    • Author(s)
      Kibe Yuji、Motomura Kazuya、Ohka Fumiharu、Aoki Kosuke、Shimizu Hiroyuki、Yamaguchi Junya、Nishikawa Tomohide、Saito Ryuta
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 1-9

    • DOI

      10.1038/s41598-022-25928-2

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 特集 Precision Medicine-個別化医療を目指した遺伝子診断と新治療の知見 Ⅰ悪性脳腫瘍 Diffuse midline glioma2022

    • Author(s)
      齋藤 竜太
    • Journal Title

      Neurological Surgery 脳神経外科

      Volume: 50 Issue: 1 Pages: 29-38

    • DOI

      10.11477/mf.1436204529

    • ISSN
      0301-2603, 1882-1251
    • Year and Date
      2022-01-10
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] <i>CD79B</i> <scp>Y196</scp> mutation is a potent predictive marker for favorable response to <scp>R‐MPV</scp> in primary central nervous system lymphoma2022

    • Author(s)
      Yamaguchi Junya、Ohka Fumiharu、Ohno Masasuke、Saito Ryuta、et.al.
    • Journal Title

      Cancer Medicine

      Volume: 12 Issue: 6 Pages: 7116-7126

    • DOI

      10.1002/cam4.5512

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 特集 グリオーマ-現在の常識と近未来のスタンダード Ⅳグリオーマ治療法update 化学療法2021

    • Author(s)
      齋藤 竜太
    • Journal Title

      Neurological Surgery 脳神経外科

      Volume: 49 Issue: 3 Pages: 588-596

    • DOI

      10.11477/mf.1436204432

    • ISSN
      0301-2603, 1882-1251
    • Year and Date
      2021-05-10
    • Related Report
      2021 Annual Research Report
  • [Journal Article] Impact of the extent of resection on the survival of patients with grade II and III gliomas using awake brain mapping2021

    • Author(s)
      Motomura Kazuya、Chalise Lushun、Ohka Fumiharu、Aoki Kosuke、Tanahashi Kuniaki、Hirano Masaki、Nishikawa Tomohide、Yamaguchi Junya、Shimizu Hiroyuki、Wakabayashi Toshihiko、Saito Ryuta
    • Journal Title

      Journal of Neuro-Oncology

      Volume: - Issue: 2 Pages: 361-372

    • DOI

      10.1007/s11060-021-03776-w

    • NAID

      120007180217

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] Convection-enhanced delivery in DIPG: Is it the way to go?2023

    • Author(s)
      Ryuta Saito
    • Organizer
      4th Congress of Asian-Australasian Society for Pediatric Neurosurgery
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 悪性脳腫瘍に対する治療開発の現状と課題2023

    • Author(s)
      齋藤 竜太
    • Organizer
      第43回日本脳神経外科コングレス総会
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] EFFICACY OF LOCAL ADMINISTRATION OF ALKYLATING AGENT AGAINST BRAINSTEM GLIOMAS2022

    • Author(s)
      Ryuta Saito
    • Organizer
      International Conference on Brain Tumor Research and Therapy
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] びまん性内在性橋グリオーマに対するACNU局所投与による多施設共同第II相医師主導臨床試験2022

    • Author(s)
      齋藤 竜太
    • Organizer
      第40回日本脳腫瘍学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Phase II single-arm, multi-center, Physician-Initiated Clinical Trial of Convection-enhanced Delivery of Nimustine Hydrochloride (ACNU) against Diffuse Intrinsic Pontine Gliomas2022

    • Author(s)
      Ryuta Saito
    • Organizer
      第60回日本癌治療学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 最大限摘出を目指すグリオーマの手術:「不易」=手術の安全、「流行」=機器の進歩に応じた術式の変化2022

    • Author(s)
      齋藤 竜太
    • Organizer
      第81回日本脳神経外科学術総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Phase II single-arm, multi-center, Physician-Initiated Clinical Trial of Convection-enhanced Delivery of Nimustine Hydrochloride (ACNU) against Diffuse Intrinsic Pontine Gliomas2022

    • Author(s)
      Ryuta Saito
    • Organizer
      American Society of Clinical Oncology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 脳腫瘍治療成績向上に向けた取り組みの現状2021

    • Author(s)
      齋藤竜太
    • Organizer
      第24回日本臨床脳神経外科
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 脳腫瘍治療成績向上を目指して2021

    • Author(s)
      齋藤竜太
    • Organizer
      第80回日本脳神経外科学会学術総会
    • Related Report
      2021 Annual Research Report
    • Invited

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi